// type fn_t = anyptr

// type all_t = anyptr

// type integer_t = int

// type floater_t = float

type nullable<T> = T?

#linkid print
fn print(...[any] args)

#linkid println
fn println(...[any] args)

#linkid rt_panic
fn panic(string msg)

#linkid rt_assert
fn assert(bool cond)